Cleanup UniFile api

app/src/main/java/com/hippo/unifile/UniFile.java

@@ -19,6 +19,7 @@ package com.hippo.unifile;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.ImageDecoder;
 import android.net.Uri;
 import android.os.Build;
 import android.os.ParcelFileDescriptor;
@@ -26,8 +27,6 @@ import android.os.ParcelFileDescriptor;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
-import com.hippo.image.Image;
-
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
@@ -414,7 +413,7 @@ public abstract class UniFile {
     public abstract boolean renameTo(String displayName);
 
     @NonNull
-    public abstract Image.CloseableSource getImageSource();
+    public abstract ImageDecoder.Source getImageSource();
 
     @NonNull
     public abstract ParcelFileDescriptor openFileDescriptor(@NonNull String mode) throws IOException;